Subject: Liturgy
Title: Missale
Subject: Moral philosophy
Author of work: F. Petrarchus (Francesco Petrarca)
Title: De remediis utriusque fortunae
Subject: Liturgy
Title: Graduale
Subject: Liturgy
Title: Missale
Subject: Canon Law
Title: Commentary on canon law
Subject: Unknown
Title: unknown
Subject: Liturgy
Title: Lectionarium